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Use libc++ when it's available

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This commit is contained in:
Thomas Goyne 2012-09-24 16:28:13 -07:00
parent b077c0991b
commit 13b83b0996
2 changed files with 17 additions and 0 deletions
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2
aegisub/configure.ac
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@ -167,6 +167,8 @@ AS_IF([test x$enable_compiler_flags != xno], [
AC_CXX_FLAG([-fno-strict-aliasing])
AC_CXX_FLAG([-pipe])
AC_CXX_FLAG([-g])
AC_CXX_FLAG([-stdlib=libc++])
AC_LD_FLAG([-stdlib=libc++])
# -O* messes with debugging.
AS_IF([test x$enable_debug = xyes], [

15
aegisub/m4macros/ac_flag.m4
View File

@ -28,6 +28,21 @@ AC_DEFUN([AC_CXX_FLAG], [{
])
AC_LANG_POP(C++)
}])
AC_DEFUN([AC_LD_FLAG], [{
AC_LANG_PUSH(C++)
ac_ld_flag_save="$LDFLAGS"
LDFLAGS="$LDFLAGS $1"
AC_MSG_CHECKING([[whether $CXX supports $1]])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[]])],
[AC_MSG_RESULT([yes])],
[
LDFLAGS="$ac_ld_flag_save"
AC_MSG_RESULT([no])
$2
])
AC_LANG_POP(C++)
}])
AC_DEFUN([AC_PCH_FLAG], [{
AC_LANG_PUSH(C++)
ac_cxx_flag_save="$CXXFLAGS"